Powder Brakes & Clutches are manufactured in wide rating range&comma; form tiny 0&period;2 KgM &lpar;2 Nm&rpar; to Massive 200 KgM &lpar;2000Nm&rpar;&comma; in various cooling versions such as Self Cooled&comma; Forced Air cooled&comma; Fan Cooled & Water Cooled&period; These are true Torque Control Devices&period; Torque is strictly proportional to Excitation Current applied to Coil&period;